Datasheet > MAX3491E

MAX3491E

更新时间： 2023-12-20 18:44:21

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
19页	2626K
描述
3.3V供电、±15kV ESD保护、12Mbps、限摆率、真RS-485/RS-422收发器

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中文翻译

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数据手册

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MAX3491E 数据手册

Click here for production status of speciﬁc part numbers.

MAX3483E/MAX3485E/

MAX3486E/MAX3488E/

MAX3490E/MAX3491E

3.3V-Powered, ±15kV ESD-Protected,

12Mbps and Slew-Rate-Limited

True RS-485/RS-422 Transceivers

General Description

Features

● ESD Protection for RS-485 I/O Pins

Devices in the MAX3483E family (MAX3483E/MAX3485E/

MAX3486E/MAX3488E/MAX3490E/MAX3491E) are

±15kV ESD-protected, +3.3V, low-power transceivers for

RS-485 and RS-422 communications. Each device con-

tains one driver and one receiver. The MAX3483E and

MAX3488E feature slew-rate-limited drivers that minimize

EMI and reduce reflections caused by improperly termi-

nated cables, allowing error-free data transmission at

data rates up to 250kbps. The partially slew-rate-limited

MAX3486E transmits up to 2.5Mbps. The MAX3485E,

MAX3490E, and MAX3491E transmit at up to 12Mbps.

• ±15kV—Human Body Model

• ±8kV—IEC 1000-4-2, Contact Discharge

• ±15kV—IEC 1000-4-2, Air-Gap Discharge

● Operate from a Single +3.3V Supply—

No Charge Pump Required

● Interoperable with +5V Logic

● Guaranteed 12Mbps Data Rate

(MAX3485E/MAX3490E/MAX3491E)

● Slew-Rate Limited for Errorless Data Transmission

(MAX3483E/MAX3488E)

All devices feature enhanced electrostatic discharge

(ESD) protection. All transmitter outputs and receiver

inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap

Discharge, ±8kV using IEC 1000-4-2 Contact Discharge,

and ±15kV using the Human Body Model.

● 2nA Low-Current Shutdown Mode

(MAX3483E/MAX3485E/MAX3486E/MAX3491E)

● -7V to +12V Common-Mode Input Voltage Range

● Full-Duplex and Half-Duplex Versions Available

Drivers are short-circuit current limited and are protected

against excessive power dissipation by thermal shutdown

circuitry that places the driver outputs into a high-impedance

state. The receiver input has a fail-safe feature that guar-

antees a logic-high output if both inputs are open circuit.

● Industry-Standard 75176 Pinout

(MAX3483E/MAX3485E/MAX3486E)

● Current-Limiting and Thermal Shutdown for

Driver Overload Protection

The MAX3488E, MAX3490E, and MAX3491E feature full-

duplex communication, while the MAX3483E, MAX3485E,

and MAX3486E are designed for half-duplex communication.

Ordering Information

PART

TEMP. RANGE

0°C to+70°C

PIN-PACKAGE

8 SO

Applications

● Telecommunications

● Industrial-Control Local Area Networks

● Transceivers for EMI-Sensitive Applications

● Integrated Services Digital Networks

● Packet Switching

MAX3483ECSA

MAX3483ECPA

MAX3483EESA

MAX3483EEPA

0°C to+70°C

8 Plastic DIP

8 SO

-40°C to+85°C

8 Plastic DIP

Ordering Information continued at end of data sheet.

Selector Guide

GUARANTEED

DATA RATE

(Mbps)

SUPPLY

VOLTAGE

(V)

DRIVER/

RECEIVER

ENABLE

SHUTDOWN

CURRENT

(nA)

±15kV

ESD

PROTECTION

PART

NUMBER

HALF/FULL SLEW-RATE

COUNT

DUPLEX

LIMITED

MAX3483E

MAX3485E

MAX3486E

MAX3488E

MAX3490E

MAX3491E

0.25

Half

Full

Yes

2.5

0.25

Yes

3.0 to 3.6

—

Yes

19-1474; Rev 1; 5/19

12 3 4 5 6 7...19

中文翻译

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与MAX3491E相关器件

型号	品牌	获取价格	描述	数据表
MAX3491ECPD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491ECSD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491ECSD-T	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EEPD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491EESD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491EESD/GG8	MAXIM	获取价格	3.3V-POWERED,+-15KV ESD-PROTECTED,12MBPS SLEW
MAX3491EESD+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EESD+T	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EESD-T	MAXIM	获取价格	3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3491EPD	MAXIM	获取价格	3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers

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